扩展ImageMagickNet
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19-09-2019 - |
题
我想自定义函数添加到类ImageMagickNet。它应该使用IsSimilarImage magick
方法从ImageMagick.NET项目,但我很困惑,我是否有借道Magick ++这种方法,可用以.NET方面的任何功能的Magick ++。
没有正确的解决方案
其他提示
这是很老,但因为是无人接听,在这里不用。
请注意,我没有看过ImageMagick的库,所以在下面的代码中的任何实现细节是严格意义上的例子。替换正确执行垃圾。假设它是出口有效.NET对象,这是它如何工作:
' Put your extension methods or properties in a clearly labeled module file, on its own within your project
Module ImageMagickNetExtensions
' Define an extension method by using the ExtensionAttribute, and make the first argument
' for the method the type that you wish to extend. This will serve as a reference to the extended
' instance, so that you can reference other methods and properties within your extension code.
<Extension()> _
Public Function SomeExtensionFunction(ByVal imn As ImageMagickNet, ByVal filename As String) As Boolean
Return imn.IsSimilarImage(filename)
End Function
End Module
Class SomeClass
' To use your extension method within your project containing the extension module, simply
' call it on any valid instance of the type you have extended. The compiler will call your code
' whenever it sees reference to it, passing a reference to your extended instance.
Private imn As New ImageMagickNet
Private Sub DoSomething()
If imn.SomeExtensionFunction("c:\someimage.jpg") Then
...
End If
End Sub
End Class
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